Your best friend's sister is in the shower and you sneak in the bathroom to catch a glance but end up finding her phone and seeing all the dirty things she records and sends to other guys. You decide to go hide in her closet in her room to catch a peek of her while getting dressed. You had no idea you'd get to see her fingering herself and fucking herself with a dildo. She naps after which gives you the opportunity to sneak out of her room but not before you take her phone to see what else she does.